Hwj chim dhau Ethernet (POE)thev naus laus zis tau hloov pauv txoj hauv kev peb lub zog peb cov cuab yeej, muab kev yooj yim, kev ua tau zoo thiab txuag nqi.Los ntawm kev sib koom ua ke lub zog thiab cov ntaub ntawv xa mus rau ntawm Ethernet cable, POE tshem tawm qhov xav tau ntawm cov hlua hluav taws xob sib cais, ua rau nws zoo tagnrho rau ntau yam kev siv xws li IP koob yees duab, cov ntsiab lus nkag wireless, thiab xov tooj VoIP.Txawm li cas los xij, ua ntej kev nqis peev hauv ib qho kev daws teeb meem hauv network, nws yog ib qho tseem ceeb kom nkag siab qhov sib txawv ntawm cov qauv thiab tsis yog tus qauv POE keyboards.

Cov qauv POE hloov pauv ua raws li Lub Tsev Haujlwm Saib Xyuas Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob (IEEE) 802.3af lossis 802.3at cov qauv.Cov qauv kev lag luam-pom zoo no qhia txog lub zog siab tshaj plaws uas qhov hloov pauv tuaj yeem xa mus rau POE-raws li cov khoom siv.Cov khoom siv hluav taws xob ntau tshaj plaws hauv cov qauv POE hloov pauv yog 48V.

Ntawm qhov tod tes, tsis yog tus qauv POE hloov pauv yuav tsis ua raws li IEEE cov qauv no.Lawv feem ntau siv cov tswv yim tswv yim uas sib txawv ntawm cov qauv tsim.Thaum cov keyboards no yuav tshwm sim los ua qhov kev xaiv siv tau vim tias lawv cov nqi qis dua, lawv tsis muaj kev sib cuam tshuam thiab kev ntseeg tau ntawm tus qauv POE keyboards.Nws yog ib qho tseem ceeb kom nkag siab txog qhov sib txawv ntawm ob qho tib si thiab cov kev pheej hmoo uas muaj feem cuam tshuam nrog qhov tsis zooPOE hloov.

Ib qho tseem ceeb sib txawv ntawm tus qauv thiab tsis yog tus qauv POE keyboards yog qhov voltage lawv muab rau cov khoom siv sib txuas.TxujPOE hloovua haujlwm ntawm 48V lub zog.Cov kev xaiv no tau txais dav thiab txhawb nqa los ntawm feem ntau POE-enabled li ntawm lub khw.Lawv muab kev txhim khu kev qha, ruaj khov zog, ua kom muaj kev ua haujlwm seamless thiab kev ua haujlwm zoo.

Nyob rau hauv sib piv, tsis yog-tus qauv POE keyboards siv voltage lwm yam tshaj li 48V.Txawm hais tias qee qhov ntawm cov keyboards no muaj peev xwm xa hluav taws xob ntau dua, lawv tsis muaj kev sib raug zoo nrog cov khoom siv hauv POE.Qhov kev tsis sib haum xeeb no tuaj yeem ua rau muaj ntau yam teeb meem, suav nrog kev tsis muaj zog, txo cov cuab yeej ua haujlwm, thiab txawm tias muaj kev puas tsuaj rau cov khoom siv sib txuas.

Txhawm rau sib txawv ntawm tus qauv thiab tsis yog tus qauv POE hloov pauv, pib los ntawm kev tshuaj xyuas cov khoom siv hluav taws xob tshwj xeeb muab los ntawm cov chaw tsim khoom hloov.Cov keyboards sib xws yuav qhia meej meej seb lawv puas ua raws li IEEE 802.3af lossis 802.3at tus qauv, nrog rau cov kev xaiv hluav taws xob uas lawv txhawb nqa.Cov keyboards no yuav qhia txog qhov tso zis ntau tshaj plaws rau txhua qhov chaw nres nkoj, kom ntseeg tau tias koj tuaj yeem siv hluav taws xob POE yam xyuam xim.

Ntawm qhov tod tes, tsis yog tus qauv POE keyboards yuav tsis ua raws li cov qauv zoo no.Lawv tuaj yeem muab cov zis hluav taws xob ntau dua lossis siv cov kev xaiv tsis yog qauv, xws li 12V lossis 56V.Ua tib zoo saib thaum xav txog hom kev hloov no vim lawv yuav tsis muab cov qib fais fab uas koj lub cuab yeej xav tau lossis tuaj yeem ua rau lub cuab yeej ua tsis tiav.

Lwm txoj hauv kev los sib txawv ntawm tus qauv thiab tsis yog tus qauv POE keyboards yog kev vam khom rau cov tuam txhab tsim khoom siv network.Cov tuam txhab tsim khoom tsim cov khoom siv hluav taws xob POE txhim khu kev qha thiab ua tau raws li kev lag luam specifications.Lawv raug kuaj nruj kom ua tau raws li cov qauv zoo thiab xa cov kev ua tau zoo tshaj plaws.

Thaum koj xav tau POE keyboards, koj tuaj yeem tiv tauj peb txhua lub sijhawm.Peb lub tuam txhab,JHA Tech, tau tsom mus rau R & D, ntau lawm thiab muag khoom ntawm ntau yam hloov pauv txij li xyoo 2007. Nws tsis yog tsuas yog muaj txiaj ntsig zoo heev ntawm tus nqi, tab sis kuj tau lav zoo heev vim tias peb tau txais daim ntawv pov thawj kev tshaj lij thiab kev tso cai;